ULN2803A Darlington Transistor Array | TI.com

ULN2803A (ACTIVE) Darlington Transistor Array

Darlington Transistor Array - ULN2803A
Datasheet
 

Recommended alternative parts

  • TPL7407L  -  Better power efficiency, lower leakage and operating temperature range up to 125C

Description

The ULN2803A device is a 50 V, 500 mA Darlington transistor array. The device consists of eight NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The collector-current rating of each Darlington pair is 500 mA. The Darlington pairs may be connected in parallel for higher current capability.

Applications include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line drivers, and logic buffers. The ULN2803A device has a 2.7-kΩ series base resistor for each Darlington pair for operation directly with TTL or 5-V CMOS devices.

Features

  • 500-mA-Rated Collector Current (Single Output)
  • High-Voltage Outputs: 50 V
  • Output Clamp Diodes
  • Inputs Compatible With Various Types of Logic

Parametrics

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Part number Order Drivers per package Switching voltage (Max) (V) Output voltage (Max) (V) Peak output current (mA) Delay time (Typ) (ns) Input compatibility Vol @ lowest spec current (Typ) (mV) Iout/ch (Max) (mA) Iout_off (Typ) (uA) Rating Package Group Package size: mm2:W x L (PKG)
ULN2803A Order now 8     50     50     500     130     CMOS
TTL    
900     500     50     Catalog     SOIC | 18     18SOIC: 119 mm2: 10.3 x 11.55 (SOIC | 18)    
TPL7407LA Order now 7     32     30     500     250     CMOS
TTL    
210     600     0.01     Catalog     SOIC | 16
TSSOP | 16    
16SOIC: 59 mm2: 6 x 9.9 (SOIC | 16)
16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
ULN2003A Order now 7     50     50     500     250     CMOS
TTL    
900     500     50     Catalog     PDIP | 16
SOIC | 16
SO | 16
TSSOP | 16    
16PDIP: 181 mm2: 9.4 x 19.3 (PDIP | 16)
16SO: 80 mm2: 7.8 x 10.2 (SO | 16)
16SOIC: 59 mm2: 6 x 9.9 (SOIC | 16)
16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
ULQ2003A-Q1 Order now 7     50     50     500     1000     CMOS
TTL    
900     500     100     Automotive     SOIC | 16
TSSOP | 16    
16SOIC: 59 mm2: 6 x 9.9 (SOIC | 16)
16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)